[sdiy] complex logic problem

Eric Brombaugh ebrombaugh at earthlink.net
Wed Aug 23 22:36:16 CEST 2006


Tavys Ashcroft wrote:
> Hi all,
> 
> I'm working on a sequencer design that is probably going to require at
> least a small microcontroller or FPGA to take care of some logic.  But
> before I go that route, I want to lay out a big old truth table and
> see if I can reduce my logic needs down to a realistic number of
> gates.  Perhaps I can get away with using a handfull of CMOS chips.
> 
> Is there any software out there that would automate this process, or
> at least assist?  I'm hoping to just fill out a giant truth table and
> have software give me possible combinations of gates that would create
> the result I'm looking for.  Does such a thing exist?  If not, could
> somebody point me to a good primer for doing this by hand?  I've only
> ever made digital logic circuits with a few gates before and this one
> is getting bigger than I can visualize.


Maybe this will help:

http://www.csc.uvic.ca/~csc485c/espresso/instructions.html

Eric



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